1.3.2 Protocols and Layers

Question 1

Name a wired mode of connection (1)

Answer 1

Ethernet(1)

Question 2

Name two wireless connection methods (2)

Answer 2

Wi-fi (1) Bluetooth (1)

Question 3

What is encryption? (3)

Answer 3

An algorithm(1) that disguises data (1) so it can only be understood by authorised users (1)

Question 4

Give three features of an IP(v4) address (3)

Answer 4

4 bytes long (1) normally written in denary (1) configured in software (1).

Question 5

Give three features of an IP(v6) address (3)

Answer 5

16 bytes long (1) normally written in hex
(1) configured in software (1).

Question 6

Give three features of a MAC address (3)

Answer 6

6 bytes long(1) normally written in hex (1) configured by hardware (1).

Question 7

Which addressing mode is used to route data over the internet? (1)

Answer 7

IP addressing (1)

Question 8

Which addressing mode is used to route data within a LAN? (1)

Answer 8

MAC addressing (1)

Question 9

What are standards? (1)

Answer 9

Rules that allow hardware and software made by different providers to interact (1). Eg Ethernet or HTML

Question 10

What is a network protocol? (1)

Answer 10

A set of rules for data transmission (1)

Question 11

What is TCP / IP used for? (2)

Answer 11

IP finds the address of a device (1) TCP transfers data (1)

Question 12

What is HTTP used for? (1)

Answer 12

Transmitting websites (HTML) (1)

Question 13

What is HTTPS used for? (1)

Answer 13

Transmits websites securely (1) using encryption (1)

Question 14

What is a layer in a network protocol? (1)

Answer 14

A division of network functionality (1) (This means it’s one part of the algorithms that make a network run)

Question 15

What are the advantages of splitting a network protocol into layers? (4)

Answer 15

Layers are self contained (1) which allows different developers to concentrate on one aspect of the network. (1) A layer can be taken out and edited without affecting other layers (1) which means different vendors and systems can work together. (1)

Question 16

What is FTP? (2)

Answer 16

File Transfer Protocol (1) transfers files using client / server. (1)

Question 17

What is POP? (3)

Answer 17

Post Office Protocol. (1) An email protocol (1) that delivers an e-mail and doesn’t keep a copy on a server. (1)

Question 18

What is IMAP? (3)

Answer 18

Instant Message Access Protocol. (1) An email protocol (1) that allows a user to access emails stored on a server. (1)

Question 19

What is SMTP? (3)

Answer 19

Simple Mail Transfer Protocol. (1) An email protocol (1) for sending emails. (1)

Question 20

What are the internet protocols we’ve learned? (3)

Answer 20

HTTP (1) HTTPS (1) FTP (1)

Question 21

Which protocol is used to connect devices on wired networks? (1)

Answer 21

Ethernet(1)

Question 22

What are the email protocols we’ve learned? (3)

Answer 22

POP3 (1) IMAP (1) SMTP (1)